Distribution of 210Ро in lichen thalli
- Authors: Puchkova E.V.1, Eremin V.V.1, Bogdanova O.G.2, Gimel’brant D.E.1, Stepanchikova I.S.1
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Affiliations:
- Chemical Faculty
- Khlopin Radium Institute
- Issue: Vol 59, No 2 (2017)
- Pages: 215-218
- Section: Article
- URL: https://journals.rcsi.science/1066-3622/article/view/223874
- DOI: https://doi.org/10.1134/S1066362217020175
- ID: 223874
Cite item
Abstract
Distribution of 210Po in thalli of soil and wood (epiphytic) lichens was studied. Four fractions containing the corresponding 210Ро forms were obtained by sequential extraction: (1) intercellular, (2) extracellular, (3) intracellular, and (4) insoluble thallus residue. The 210Ро uptake by lichens is mainly passive, as the total content of the radionuclide in fractions 1, 2, and 4 reaches 88–97%. From 3 to 12% of 210Ро is taken up actively (fraction 3), and for soil lichens this parameter is approximately 2.75 times higher than for epiphytic lichens. Presumably, 210Ро is supplied into soil and epiphytic lichens in the form of different chemical compounds and is therefore characterized by different bioavailability.
About the authors
E. V. Puchkova
Chemical Faculty
Author for correspondence.
Email: evpuchkova@yandex.ru
Russian Federation, Universitetskii pr. 26, St. Petersburg, 198504
V. V. Eremin
Chemical Faculty
Email: evpuchkova@yandex.ru
Russian Federation, Universitetskii pr. 26, St. Petersburg, 198504
O. G. Bogdanova
Khlopin Radium Institute
Email: evpuchkova@yandex.ru
Russian Federation, 2-i Murinskii pr. 28, St. Petersburg, 194021
D. E. Gimel’brant
Chemical Faculty
Email: evpuchkova@yandex.ru
Russian Federation, Universitetskii pr. 26, St. Petersburg, 198504
I. S. Stepanchikova
Chemical Faculty
Email: evpuchkova@yandex.ru
Russian Federation, Universitetskii pr. 26, St. Petersburg, 198504